AR-15s

mike240 said

I understand. I made my living with them since 2007. Along with a rifle and a 1911. This is a gun thread….

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You're right of course...sorry for the diversion!

I have a couple of yet-to-be-machined lowers. Are there any manufacturer's uppers I should avoid? Whatever I build will be a Sporter/plinker. Websites or manuals you can recommend? Thanks in advance.